@inproceedings{whosaiditandwhyprovenancefornatural,
  title = {``Who said it, and Why?'' Provenance for Natural Language Claims},
  author = {Yi Zhang and Zachary Ives and Dan Roth},
  year = {2020},
  booktitle = {ACL 2020 6},
  url = {https://aclanthology.org/2020.acl-main.406},
}